- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02444559
Does Perineural Clonidine Prolong Duration of a Nerve Block?
Does Perineural Clonidine Prolong the Duration of an Adductor Canal Block When Controlling for a Systemic Effect? - A Randomised Paired Trial in Healthy Volunteers.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Background:
Efficient pain management promoting mobilization and convalescence is essential in an ideal perioperative course. Regional nerve blocks are a central element in postoperative regimes for many patients and it is therefore important that these nerve blocks are both long lasting and efficient. This trial will investigate whether it is possible to optimize the postoperative pain management when adding clonidine to the local anaesthetic ropivacaine in peripheral nerve blocks.
The prolonging effect of using clonidine as adjuncts in peripheral nerve blocks have been investigated in several studies. However, it remains uncertain whether the effect is mediated by a systemic-, a peripheral- or a combined systemic/peripheral mechanism. In this trial the adjuvating effect of clonidine will be investigated using the adductor canal block. This is a nerve block that besides being efficient as pain treatment after knee surgery, is primarily sensory, and therefore augments mobilization after total knee arthroplasty.
Method:
On the trial day the volunteers will receive bilateral adductor canal blocks. In one thigh they will receive the local anaesthetic ropivacaine 20ml 5mg/ml and placebo (saline) and in the other thigh ropivacaine 20ml 5mg/ml and Clonidine 150μg. The allocation is blinded to volunteer and investigator.
The duration of the nerve block will be measured by five different tests: Temperature test, Pinprick, Pain during tonic heat stimulation, Warmth detection threshold and pain detection threshold. All tests are validated within pain research.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
-
Koege, Denmark, 4600
- Department of Anesthesiology Koege Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- American Society of Anesthesiologists class 1
- Body Mass Index 18-30
Exclusion Criteria:
- Allergy to study medication
- Earlier trauma or surgery to lower limb
- Diabetes Mellitus
- Alcohol or drug abuse
- Daily intake of opioids or steroids last 4 weeks
- Daily intake of any analgesics last 48 hours Heart block Sick sinus node.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Ropivacaine+Clonidine
Adductor Canal Block Ropivacaine 20ml 5mg/ml+ Clonidine 150ug
|
|
Placebo Comparator: Ropivacaine+Placebo
Adductor Canal Block Ropivacaine 20ml 5mg/ml+ saline
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difference in duration of sensory block between clonidine and placebo assessed as cold sensation with an alcohol swab
Time Frame: 0-36 hours
|
Duration is defined as time from block performance until recovery of cold sensation to an alcohol swab, assessed every hour post-block (and every half hour when pain scores during the tonic heat stimulation test is above 0) Time for sleep will be provided.
|
0-36 hours
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difference between Clonidine and placebo in the duration of a sensory block assessed by pin-prick
Time Frame: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block Time for sleep will be provided.
|
0-36 hours
|
Difference between clonidine and placebo in the duration of a sensory block assessed as maximum pain during a tonic heat stimulation test
Time Frame: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block Time for sleep will be provided.
Recovery of normal sensation is defined as VAS pain scores ± 10 mm of the pre-block value.
|
0-36 hours
|
Difference between clonidine and placebo in the duration of a sensory block assessed as warmth detection threshold
Time Frame: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block Time for sleep will be provided.
Recovery of normal sensation is defined as detection thresholds of ± 2 degrees C of the pre-block value.
|
0-36 hours
|
Difference between clonidine and placebo in the duration of a sensory block assessed as heat pain detection threshold
Time Frame: 0-36 hour
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block.
Time for sleep will be provided.
Recovery of normal sensation is defined as detection thresholds of ± 2 degrees C of the pre-block value.
|
0-36 hour
|
Difference in maximum pain scores between clonidine and placebo during block and after recovery of normal sensation.
Time Frame: 0-36 hours
|
Pain scores during a tonic heat stimulation will be compared every hour post block and 1 h after pain scores have returned to the pre-block values.
Time for sleep will be provided.
|
0-36 hours
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jakob H Andersen, MD, Department of Anesthesiology Koege Hospital
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Physiological Effects of Drugs
- Adrenergic Agents
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Antihypertensive Agents
- Central Nervous System Depressants
- Autonomic Agents
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Anesthetics
- Adrenergic alpha-2 Receptor Agonists
- Adrenergic alpha-Agonists
- Adrenergic Agonists
- Anesthetics, Local
- Sympatholytics
- Ropivacaine
- Clonidine
Other Study ID Numbers
- SM1-JH-14
- 2014-005640-18 (EudraCT Number)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Healthy
-
Prevent Age Resort "Pervaya Liniya"RecruitingHealthy Aging | Healthy Diet | Healthy LifestyleRussian Federation
-
Maastricht University Medical CenterCompletedHealthy Volunteers | Healthy Subjects | Healthy AdultsNetherlands
-
Yale UniversityNot yet recruitingHealth-related Benefits of Introducing Table Olives Into the Diet of Young Adults: Olives For HealthHealthy Diet | Healthy Lifestyle | Healthy Nutrition | CholesterolUnited States
-
Hasselt UniversityRecruitingHealthy | Healthy AgingBelgium
-
Galera Therapeutics, Inc.Syneos HealthCompleted
-
Galera Therapeutics, Inc.Syneos HealthCompletedHealthy | Healthy VolunteersAustralia
-
University of PennsylvaniaActive, not recruitingHealthy | Healthy AgingUnited States
-
Chalmers University of TechnologyGöteborg UniversityCompletedHealthy | Nutrition, HealthySweden
-
University of ManitobaNot yet recruitingHealthy | Healthy Diet
Clinical Trials on Ropivacaine 20ml 5mg/ml+ Clonidine 150ug
-
University of PatrasUnknownStillborn Caesarean SectionGreece
-
Centre Hospitalier Universitaire DijonCompletedIndication for Surgery of the Posterior Segment Under Locoregional AnaesthesiaFrance
-
University of PatrasUnknownStillborn Caesarean SectionGreece
-
The University of Texas Health Science Center,...Memorial Hermann HospitalCompletedAnterior Cruciate Ligament InjuryUnited States
-
Yonsei UniversityWithdrawnThe Evaluation of Erector Spinae Plane Block for the Pain Control of Thoracic Postherpetic NeuralgiaThoracic Postherpetic NeuralgiaKorea, Republic of
-
Zealand University HospitalUnknown
-
University of California, IrvineActive, not recruitingPain ManagementUnited States
-
University of PennsylvaniaWithdrawnWrist Injuries | Postoperative Pain ControlUnited States